/Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionDBufferTexture.h
class UMaterialExpressionDBufferTexture : public [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression)
FExpressionInpu...
Coordinates
UV in 0..1 range
TEnumAsByte< ED...
DBufferTextureId
Which DBuffer texture we want to make a lookup into.